/Engine/Source/Editor/UnrealEd/Public/EdMode.h
Process all captured mouse moves that occurred during the current frame
virtual bool ProcessCapturedMouseMoves ( [FEditorViewportClient](API\Editor\UnrealEd\FEditorViewportClient) * InViewportClient, [FViewport](API\Runtime\Engine\FViewport) * InViewport, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< FIntPoint > & CapturedMouseMoves )